His results seem to show a massive performance decline in later Excel versions.Looking at his benchmark and its VBA code you can see that has Screen Updating ON and repeatedly calculates in Automatic mode., Excel and VBA expert Curt Frye introduces object-oriented programming and shows how to automate routine tasks and provide custom functionality to enhance Excel performance and efficiency.This course introduces the Visual Basic for Applications programming language, covers creating subroutines and functions to hold code, and provides a solid grounding in the Excel 2007 object model.Whenever you have a task to automate, you can usually go down the VBA route. Maybe later you add some features here-and-there, making your VBA code more powerful. Color = vb White End If i = i 1 Next cell ' offset i to alternate column coloring i = i 1 Next repeat Msg Box "Total time was: " & (Timer - start Time) End Sub Before moving on, let’s get a better understanding of why this is taking so long. The code runs much faster when there’s less real estate to update on your screen. Screen Updating = True End Sub Now the code runs at 1.4 seconds for me, which is a huge improvement.And usually when you write your code, you’re just trying to get things to work. But after a while you notice your code is beginning to get very slow when it runs. I mentioned that the issue is that the screen is constantly updating, which is causing the code to run slowly. Now it should make sense why it’s a good idea to turn off Public Sub Add Content To Sheet() Application. Color = vb Black Else ' else, color the cell light gray cell. EXE process.) How much of a difference does invisibility make?
If you need to update page numbers, you will have to show the application window before doing the update: With See Page X of Y displays or prints as Page 1 of 1, Page 2 of 2 etc. I hear rumors that you may also need to work with the Range object instead of the Selection object, but I have not tested this nearly enough to give a list because I do almost all of my work with Ranges.
Here is an example from a Visual Basic client: In the above example, Word launches but does not appear anywhere on the screen. (It does, though, show up in NT's Task Manager, in its list of running processes.) Despite this apparent lack of response, Word is very active and quite capable of doing everything it is told-creating a new document, inserting the message, , saving the file, closing it, and quitting.
You can verify this by launching Word the old-fashioned way and opening File1 at the bottom of the File menu after running the sample code.
Calculate Next i t End = Micro Timer t Screen On = (t End - t Start) End With Msg Box "Off " & Int((t Screen Off) * 1000) & _ " On " & Int(t Screen On * 1000) & _ " Diff " & Int((t Screen On - t Screen Off) * 1000) & " Millisecs" End Sub I think what has happened is that Excel 2013 is still doing all the work to update and format the values, but has added a check to limit the frequency of requests to Windows to actually repaint the screen.
Definitely it will save you a lot of time, but you have to decide of you want/need to see what is happening when your code is running.